esp-idf/components/partition_table/Kconfig.projbuild
Angus Gratton f8b9cb2864 paritition_table: Verify the partition table md5sum when loading the app
Additionally, always enable the partition MD5 check if flash encryption is on in
Release mode. This ensures the partition table ciphertext has not been modified
(CVE-2021-27926).

The exception is pre-V3.1 ESP-IDF bootloaders and partition tables, which
don't have support for the MD5 entry.
2021-06-02 06:35:45 +00:00

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menu "Partition Table"
choice PARTITION_TABLE_TYPE
prompt "Partition Table"
default PARTITION_TABLE_SINGLE_APP
help
The partition table to flash to the ESP32. The partition table
determines where apps, data and other resources are expected to
be found.
The predefined partition table CSV descriptions can be found
in the components/partition_table directory. Otherwise it's
possible to create a new custom partition CSV for your application.
config PARTITION_TABLE_SINGLE_APP
bool "Single factory app, no OTA"
config PARTITION_TABLE_TWO_OTA
bool "Factory app, two OTA definitions"
config PARTITION_TABLE_CUSTOM
bool "Custom partition table CSV"
endchoice
config PARTITION_TABLE_CUSTOM_FILENAME
string "Custom partition CSV file" if PARTITION_TABLE_CUSTOM
default "partitions.csv"
help
Name of the custom partition CSV filename. This path is evaluated
relative to the project root directory.
config PARTITION_TABLE_FILENAME
string
default "partitions_singleapp.csv" if PARTITION_TABLE_SINGLE_APP && !ESP32_ENABLE_COREDUMP_TO_FLASH
default "partitions_singleapp_coredump.csv" if PARTITION_TABLE_SINGLE_APP && ESP32_ENABLE_COREDUMP_TO_FLASH
default "partitions_two_ota.csv" if PARTITION_TABLE_TWO_OTA && !ESP32_ENABLE_COREDUMP_TO_FLASH
default "partitions_two_ota_coredump.csv" if PARTITION_TABLE_TWO_OTA && ESP32_ENABLE_COREDUMP_TO_FLASH
default PARTITION_TABLE_CUSTOM_FILENAME if PARTITION_TABLE_CUSTOM
config PARTITION_TABLE_OFFSET
hex "Offset of partition table"
default 0x8000
help
The address of partition table (by default 0x8000).
Allows you to move the partition table, it gives more space for the bootloader.
Note that the bootloader and app will both need to be compiled with the same PARTITION_TABLE_OFFSET value.
This number should be a multiple of 0x1000.
Note that partition offsets in the partition table CSV file may need to be changed if this value is set to
a higher value. To have each partition offset adapt to the configured partition table offset, leave all
partition offsets blank in the CSV file.
config PARTITION_TABLE_MD5
bool "Generate an MD5 checksum for the partition table"
default y
depends on !ESP32_COMPATIBLE_PRE_V3_1_BOOTLOADERS
help
Generate an MD5 checksum for the partition table for protecting the
integrity of the table. The generation should be turned off for legacy
bootloaders which cannot recognize the MD5 checksum in the partition
table.
endmenu